Field Wiring Diagram- Burner Mounted Lal Control - Riello Burners RL 70/2 Installation, Use And Maintenance Instructions

Field Wiring Diagram
RL 70 - 130 three phase burner with burner mounted LAL flame safeguard
F A
S AWG
(A)
FIELD WIRING CONNECTIONS
As set by installer
Use flexible cables according to local regulation.
LAYOUT (A)
RL 70 - 100 - 130 Burners three-phase 208-230/460/575 V power supply .
Key to wiring layout (A)
MB - Burner terminal strip
PS - Remote lock-out reset
H1 - Remote lock-out signal
H2 - Low fire signal
H3 - High fire signal
H4 - Power on signal
H5 - Limit satisfied
IN - Manual burner stop switch
OC - Operating control.
OC2 - High-low control.
HL - High limit.
Important:
the burner is factory set for high operation and must be connected to the OC2 control to control fuel oil valve V2.
If on-off operation is required, install a jumper lead between terminals T6 and T8 of burner terminal strip.
NOTE
• The setting of the thermal overload must be according to the total burner amperage draw.
•
Burners RL 70 - 100 - 130 leave the factory preset for 208/230V power supply. If 460V power supply is used, change the motor connection from
delta to star and change the setting of the thermal overload.
•
The RL 70 - 100 - 130 burners have been type-approved for intermittent operation. This means they should compulsorily be stopped at least
once every 24 hours to enable the control box to perform checks of its own efficiency at start-up. Burner halts are normally provided for auto-
matically by the boiler load control system.
RL 70
208-230 V 460 V 575 V
T 10 T 6 T 6
14 14 14
RL 100
208-230 V 460 V 575 V
T 15 T 10 T 6
14 14 14
14
RL 130
208-230 V 460 V 575 V
T 15 T 10 T 10
14 14 14
D2252